1.Because he was ill yesterday, so he didn’t go to work. (×)
Because he was ill yesterday, he didn’t go to work. (√)
He was ill yesterday, so he didn’t go to work. (√)
[析] 用though, but表示“雖然……，但是…… ”或用because, so 表示“因?yàn)?hellip;…，所以……”時(shí)，though和but 及because和so 都只能擇一而用，不能兩者同時(shí)使用。
2.The Smiths have moved Beijing. (×)
The Smiths have moved to Beijing. (√)
[析] 不及物動(dòng)詞后接名詞或代詞作賓語時(shí)，要在動(dòng)詞之后加上適當(dāng)?shù)慕樵~；但不及物動(dòng)詞后接home, here, there等副詞作賓語時(shí)，動(dòng)詞之后不必加任何介詞。
3.The box is too heavy for him to carry it. (×)
The box is too heavy for him to carry. (√)
[析] the box既是這句話的主語, 也是不定式to carry的邏輯賓語，若句末再加上it，就和the box重復(fù)了。
4.Each of the boys have a pen. (×)
Each of the boys has a pen. (√)
[析] 復(fù)數(shù)名詞前有表個(gè)體的each of, one of, every，either of等詞組修飾，或有表否定的neither of, none of 等詞組修飾時(shí)，謂語動(dòng)詞要用單數(shù)形式。
5.例:那是你心軟！我不就是一個(gè)例子嗎？
Neither he nor you is good at English. (×)
Neither he nor you are good at English. (√)
[析] either... or..., neither... nor..., not only..., but also... 等詞組連接句子的兩個(gè)主語時(shí)，謂語動(dòng)詞遵循“就近一致原則”, 即由靠近謂語的那個(gè)主語決定謂語的人稱和數(shù)用何種形式。
6.Ten minus three are seven. (×)
Ten minus three is seven. (√)
[析] 用英語表示加（plus）、減(minus)等數(shù)學(xué)運(yùn)算時(shí)，謂語動(dòng)詞也用單數(shù)形式。
7.The number of the workers in this factory are about 5,000. (×)
The number of the workers in this factory is about 5,000. (√)
[析] the number of表示“……的數(shù)量”，謂語動(dòng)詞用單數(shù)形式；a number of 的意思是“若干”或“許多”，相當(dāng)于some或a lot of，和復(fù)數(shù)名詞連用，謂語動(dòng)詞用復(fù)數(shù)形式。
8. 例. Hello! I have important something to tell you. （×）
Hello! I have something important to tell you. (√)
[析] 形容詞或動(dòng)詞不定式修飾不定代詞作定語時(shí)，修飾成分要置于不定代詞之后。
9. His son is enough old to go to school. （×）
His son is old enough to go to school. (√)
[析] enough作形容詞修飾名詞時(shí)，可以放在名詞前，也可放在名詞后；作副詞修飾形容詞或副詞時(shí)，只能放在形容詞或副詞之后。
10.. Here is your sweater, put away it.（×）
Here is your sweater, put it away. (√)
[析] put away, pick up, put on等“動(dòng)詞+副詞”構(gòu)成的詞組后接代詞作賓語時(shí)，代詞只能放在動(dòng)詞和副詞之間。
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